Hierarchy of Geometrical Shapes

• First version of Java: few shapes, integer coordinates
  

  Point
  Rectangle
  Polygon
  

• Java 2: sophisticated shapes, floating-point coordinates
  

  Point2D
  Rectangle2D
  RoundRectangle2D
  Line2D
  Ellipse2D
  Arc2D
  QuadCurve2D
  CubicCurve2D
  GeneralPath
  Area
  

• All but Point2D implement Shape interface type